Stop mechanism for machinery.



D. M. COOPER.

STOP MBGHANISM FOR MACHINERY.

APPLICATION FILED DEO.30,1909.

n0. 1L 9 1M 1B 00H 2A .US pm eB SH dS en t D e t na P D. M. COOPER.

STOP MBCHANISM FOR MACHINERY.

APPLICATION FILBDDEU.301909.

Patented Sept. 23, 1 913.

Z SHEETS-SHEET 2.

Hio-

Re it known that i1 iii/mini'. iiiu (ioo'ig'nic, oi" .iion'hesiem in theCounty of .iiionroe :init State oi New York, have inrenieii reri'ziin.new :ulti usefui iniprorelneni in, Stop Meri'fhnnisms for ii'inchinery:nnr'i i' (io herehy tieoinre the iioiiow'ing to he n i'nii. rient', :ontexact description oi the sinne. reterenrfe ho-4 ing inni iio thenerompnnyingr drawings, formingr n pnrt' oi this sipeeiiiirntion. ninilo the reference-nnnierziie nizirh'eii thereon.

The 'fm-,sent invention ruimtes; to i ton mechanisms for machinery niniinw i'or :in object to provide :i constrnrtion whivh wiii ntiiize thedriving' power oi' ihe nmohine to he :stepped for hr faking oonneriionhet wenn the driving finti the firiven parta, thin; insnr ing n positiveaction oi the stop n'ierininhnn.

To these and other ends the invention con Sisto .in certain improvements:inri eomhinntions of parts :iii es wiii be hereiiniter more fuiiydescribed, the novei features heine' pointed ont in the e'liiiins nt theein! oi the Specification. t

n the drawings: Figure 1 is a. side view of n portion of u mangia or'ironing nnnhine to which the present invention han heen irppiiefi; 2 isn section on the line @mit of Fig'. l; Fig. 3 is n section on the iin(-b-b of Fig. 2; Fig. i .is n section on the line 0&1: of Fig. 2; Fig. 5shows the stop mechanism in eievntion with n driving motor connectedthereto, finti Fig. (i is n (ietnii horizontal View Showing the switchfor stopping the motor.

In this inifention n shifter in operated to break connection between thedriving :mii the driven pnrts whenrve un nhnornmi emr dition exissis inthe innohine to whiih thi` invention hns heen zippiieti. The iirivingzjports in this einhmiinient comprise n simil l snitnhiy sniiportefi andhaving' n non, wheei 2 eonnoeieii thereto anni nieahinej with n pinionSi on the shaft oi ihe motor ll, the hitter heilig' supported in :mylwitnble manner :is on the hrnekei :arm 3 tietnrimhiy hoiteti :it G to:t Siep mechnnisin irfilne i 'which is seonreti :it one ssirie oi' then'nnfhiin to he stepped, such :is n nmng'ie ii. 'ihe driven parts inthis instnnre vomitirine n pinion 8 turning inoneiy upon the shni't i.

ani] meshing; with the driving wheei '.0 ot the nningie A.

Connection between the driving Eind ti e driven ,9Min n'iny heestnhiisheii hy n cinta-h filed iecsniber .110, 1969. Serin! No.blitiii.

within :i illfooi'rf fi i'ornnn! on ii:- a inwnlher li :imijiel'niitiingf iinififi,

the inning' i". This; |if-ir muy huw "i mini Snrt'iit'o Q1 ti'nf'non tornoiii'ierntiini with the shifter iiit the imiter inriei'nhiysirmiiiiingr the shaft 20 :ind ':n'i'i'iiigfj :i trifiinz: roihfriiirnrtir nhoviihe niniit 2i). ii im :in purent that when the 'innnienhnr if' if; rotated the Shifter i?. wiii he inermi io enrry theointeh nnnnher li www troni iin cinte-h n'ieiniiier it).

(jonlniotion hetliieen parts moving; with the 'inziciiine to he stopped:imi the .nirniim' 19 is in this insinnm: estnhiinhmi hy :i piniontixei'iiy Seeln'lii io the :fixait i 14n :ne: turn thm'ewith annimoaning); with :i :wir i-i on ihe rotznrjv inenihrr 35 whirii trarre nthe l ,ini'i`i ii() no tfhnt iti; finis ifi-z minrifh-izt with the :irisoi? turning' ofthe nieniher if). 'ihin rotary nienihrer 3i nnty ini'veoni: or more proieeiioi'in fifi extending' intei'niiy iroin the fiisi:portion 52T oi' ihr: roini'y nnnnhei' :imi ('iiilyingr {ril-tion roihrn53S with wint-fh oneintes :i ing 2f? nri'alernhiy piroi'eii io ih roinrynielnher if) :Inti iniviin; n :wn: it eXIenIh-ii hoyonii the periphery iiwi' if)` Sinni nrni heini); :niiiiiinii if', itil( with stonr: IS.: onnnfniiwr i9 to Zinn nn'iwnnint oi the tion' 151i in twn iin-tri' 'ihetion; in this` imi-mire in' morini i with o i' this stom titi hi' niwiieni nl' rem-nini nt one onli nt ff to ihr'. i .inii nt iii-.i eitherinni in hai iinrr iinY ii ii the latter a normal tendency to engage withthe projections onthe rotary member 2 ln order to hold the dog ont ofthe path ot the projections, there may` be provideda. stop vieldinelysupported by a spring 36 on one arm of. a bell crank lever L7 which ispivolied at 38 indej'iendentlv of the member to the casing 7 of the stopmechanism and is normally held by a weight 39er other suitable means sothat the Vstop 35 lies inthe path of the arm 3i of the dog'. rl`he otherarm l0 of the bell crank trip is controlled 'in any suitable manner. lnthis instance a pull bar il is pivoted at one end at i2 to the armiOland at its other end at t3 to the arm 44 on the rock shaft 45 Whichin turn carries a Weighted' arm 46 and is connected to an arm 47 ofthefinger board 480i the machine. y'Gopejintion between the arm 5l and thestop 35 may be maintained by preventintga the accidental rotation of themember 19 by suitable means suoli. as a pawi 53 pivoted at V5e kto thecasing 7 and pressed toward the memberi bv a spring 55 so 'with one ot'the teeth vor projections 56' tcrmedon a; portion ofthe periphery oftbeportions `of thek member 19, vthe remaining periphery benig-enrved inorder tnatthe ridel freely thereover. -1

"it 1s desirable, with the breaking of ythe yccmnection between thedriving and driven partev to stop the motor 4': and for this reason thecontroller' Y mally pressed to oit i9 oit' the motor is nortion bv asuitable spring; (not shown), While it is held in tonffposition by anelelctrodnagnet 50 'Y' a shit-t lfisnioved to breek connection in ehuntnwith the motor, adapted to be short circnite'd'oj a-s'witfh having `onemember 5l thereof secured to the stop mecbanism casing? the other member52 carried by i3. it follows that when the shifter between the firmingand the. driven parte, the switch member :TS2 'will engage the switchmember 5l and-'short circuit the magnet 50, thus rethe operating; memberLi9 and permitting the latter to move to oit l position under the actionoi spring.

In operation the shifter" 13 moved E manliallv. by means of its handportion 18 to establish -g means ot the pull bar moved ont of engagementvwith the dog; 3i, permitting the dop; to move into the path theprojeetions 26 so l magnet j drivenu l"VV band into engagement withconnection between the clutch members i@ and li. rihe controller 49 isnovizi, moved unt-il 50., thus cansingw the mangle to be t the.operative should move her j the finger board V48 with snilioicnt force,then, through the Lil, the stop 35 will be to be engaged by t inem it,of course, being understood le o.

@amores ronstantlj" to coperate.

it is ield by the electroengagement between tri-ted and the cam 2l tomove the sliiiterfvl Y the Vprojections 26 and, y the (10g 919 Causesthe member 19 to be 110-7 so as to break connection between the clutch vI l members 10 and ll,y and to short circuit the claim. as my invention:

shiiter, a rotatable. memberhaving',4 afprochine to be" stopped,

having a projection thereon and vmovable with the machine to be stopped,a movable member tor moving the shifter, a spring pressed dog; on themovable ,member movable into the path of the projection, and a yieldingstop arranged to hold the 'said "dog ont ot the path ot the projectionand mounted independently of the movable member.

and a driven member,' a rotatable-'member having` a projection niovewith the machine to2 tatable member for operating rotatable member, aystop dog against m ove nent, l:in

'rlhe 5. A 'stopineciianisln coinpris'in ing` the dogcarrying memA jsiti-enthat thefdog coj'werintes"Witlrthi` Shiner' mounted independently0 A. the movablemember "l'or holding the `dog i spring pressed dogcarried by the last nainedffor'. holding the f pawl 'forboldv"rfin'@sucha po# the motorv and the .manille brit v same time cutsoil' the motive power sov accidental starting of themachine 1s' l. n..stop mechanism comprisingfa' clutohA jection thereon and movable withthema- 'j y.a member havinga I cam vsurace thereon with which the'shifter l r'aid member beingA rotatable abontthe axis of rotation oithe' first named member and-iixed on a normally stationary.

by the second :named .ro-

and a driving member, a rotatable member l.

fl. i stop mechanisrncomprising afsliifter l tor breaking,` connectionbetween a driving4 thereon and'adapted to` 'Y be stopped'jja 130:'y

the shifte`rjiiifA C for breakinfgl connection between the drive ing andthe iven member, a rotatable member having a projection thereon andadapted to move with the machine to be stopped, a member rotatable aboutan axis coincident with the rst named rotary member, a cani surface onthe second named rotary mem,v ber, for coperaton With the shifter, aspring pressed dog arranged on the cam- 10 carrying member and movableinto the path of the projection, a stop adapted to coperate with the dogto hold' it out of the path of the projection, and a pawl adapted tocooperate With Athe cam carrying member to hold thedog against the stop.

DANIEL M. COOPER. Witnesses:

Ron'r. V. LYON, R. G. STALLKNIGHT.

